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Slav-nsk [51]
3 years ago
8

Write an explicit formula for the sequence -3, 1, 5, 9 ... i think the answer is a_n=-3+4(n-1) i just need someone to double che

ck me :)
Mathematics
1 answer:
VLD [36.1K]3 years ago
8 0

Answer:

you are correct

Step-by-step explanation:

The sequence has a common difference between consecutive terms

d = 9 - 5 = 5 - 1 = 1 - (- 3) = 4

This indicates the sequence is arithmetic with explicit formula

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 3 and d = 4, thus

a_{n} = - 3 + 4(n - 1) = - 3 + 4n - 4 = 4n - 7

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How do you Simplify 16/12
vlada-n [284]
You need to find a common factor that both the numerator and denominator have. 16 and 12 have common divisible factors of 2 and 4(excluding 1, because 1 is self-defined but doesn't simplify values at all). 

We use the highest factor, in this case, 4. 

Divide 16 by 4 and 12 by 4.

16/4 = 4
12/4 = 3

We put 4 in place of the numerator and 3 in place of the denominator.

\frac{4}{3}
4 0
3 years ago
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Combine the like terms to create an equivalent expression.<br> 4n+6+n-2
NemiM [27]

5n+4 seems to be the answer

3 0
3 years ago
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31600 rounded to the nearest thousand is what
Zigmanuir [339]
32000 is your answer

hope this helps
4 0
3 years ago
Whoops i forgot to read the lesson :P 30 points
andriy [413]

Step-by-step explanation:

I'll do 2.

Alright,Alex let say we have factored a quadratic into two binomial, for example

(5x + 3)(6x - 4)

If we set both of those equal to zero

(5x + 3)(6x + 4) = 0

We can used the zero product property in this case to find the roots of the quadratic equation.

This means that

if  \: ab = 0 \: then \: a = 0 \: and \: b = 0

This means we set each binomal equal to zero to find it root.

5x + 3 = 0

5x =  - 3

x =  -  \frac{3}{5}

6x + 4 = 0

6x =  - 4

x =  -  \frac{2}{3}

So our roots are negative 3/5 and negative 2/3 using zero product property

6 0
2 years ago
PLE HELP ASAP WILL MARK BRAINLIEST IF YOU ARE CORRECT!!!!!!!!!
masya89 [10]

Answer:

(8, 6)=(x, y) | (6, 5)= (y, x)

Step-by-step explanation:

Start at the x, and find the value. Next, find the value of y.

You already know the value for y is 6, so next find the value of x, which is 5.

7 0
2 years ago
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